HiVi-SP10-Subwoofers.jpgHiVi SP10 Subwoofers6059 viewsA pair of subwoofers built by Daniel's following Adam's DIY HiVi SP10 Subwoofer Project. Full details of Daniel's build are available at his webpage.

In the background is are the DIY Hi-Vi 3-Way Tower Loudspeakers also built by Daniel.Jul 10, 2009

DIY-HiVi-SP10-Subwoofers.jpgDIY HiVi SP10 Subwoofers6384 viewsDaniel's build following Adam's DIY HiVi SP10 Subwoofer Project. Daniel reports that the subwoofers produce low frequencies which are accurate and very well defined. There are many more pictures and information about Daniel's build at his webpage.Jul 10, 2009

DIY-6s45p-300B-GU-48-Tube-Amplifier.jpgDIY 6s45p / 300B / GU-48 Tube Amplifier - 125 Watts4102 viewsMy 125W tube amplifier. The input tube is 6s45p which drives a 300B and is followed by a GU-48 (replacement for the 833 tube). The 6s45p input tube is DC coupled to a 300B. There are no resistors or capacitors in the signal path. The 300B is coupled to a GU-48 tube through a step-down interstage transformer. Driver and output tubes are fixed biased for more natural and dynamic result. Output tube is working at 1000V-250mA. Amplifier gives me 125W single ended sound in class A2 mode. It has very powerful deep bass, mids are very loud and lovely. Highs are very clear. I am feeling like in concert hall. The case is made from 20mm thick African Wenge wood. Chassis is 2 mm thick electrostatic painted steel. The total weight is 50 kg.Jul 07, 2009

DIY-6V6-Push-Pull-Tube-Amp.jpgDIY 6V6 Push-Pull Tube Amplifier2757 viewsA photo of a 10W 6V6 Push-Pull Tube Amplifier put together by Michael S. Holden. Michael has put together a detailed set of instructions for this tube amplifier project:

DIY-TDA2050-Mini-Gainclone-Chipamp.jpgTDA2050 Hi-Fi Chip Amplifier (chipamp)5400 viewsInside view of my "Mini Gainclone" - a TDA2050 Hi-Fi Chip Amplifier (chipamp). Output is about 25W and the amplifier is built on a protoboard. The power supply contains a 120VA torroidal transformer, 10,000uF capacitors and generally follows the "snubberized" gainclone power supply design. For full details, see the DIY TDA2050 Hi-Fi Chip Amplifier project pageJul 05, 2009

apic8A.jpgTwo Buck Chuck - 50EH5 Tube Amp2618 viewsThis is a stereo tube amp that was pulled out of a Philco record player that I paid two dollars for. It uses 50EH5 tubes in single ended mode.

Similar project: Single-Ended (SE) 50EH5 Tube AmplifierJun 26, 2009

DIY-Speakers-and-Subwoofer.jpgDIY Speakers and DIY Subwoofer 6631 viewsI just finished building some budget speakers and subwoofer. Very basic design but that is the look I was after. It is my first project so I kept the components cheap. It sounds quite good considering the cost. Certainly a lot better sound than the speakers I was considering which cost 5 times the amount. Also I had fun and learned a lot along the way.

To get a perfect gloss finish and without the need to bog and sand screw holes, I first screwed the 19mm MDF together and then laminated (glued) 3mm MDF over the top. Next I trimmed the edges of the 3mm MDF with a router fitted with a laminex trimmer. After a light sand the boxes were ready to finish with no chance of seeing any screw holes.

I also made a cabinet to match and used some perspex for the centre panel and sprayed it the same colour as the subwoofer.

Complete instructions to build a similar DIY version of the amp are available on the Oddwatt 225 - 6SL7 SRPP / KT77 SIPP (Push-Pull) Tube Amplifier project page.Jun 13, 2009

3.jpgDIY Guitar Amplifier 6632 viewsA photograph of the finished DIY Guitar Amplifier. The simple graphics on the faceplate are custom made and a fender speaker cover is used. The amplifier is a K-16LM 16W Mono Tube Amp Kit.Jun 13, 2009

2.jpgDIY Guitar Amplifier - Inside8064 viewsHere is a photograph of the inside of the cabinet. You can see the K-16LM mono 16W tube amplifier kit mounted to the top. At the bottom there is a tiny General Electric 6SC7 tube preamp. Nice tube clipping!Jun 13, 2009

Full details of the tube amplifier topology along with complete DIY instructions are available on the 12SL7 SRPP / KT88 SIPP (Push-Pull) DIY Tube Amplifier project page.Jun 08, 2009

Fostex-FE127E-DIY-Bass-Reflex-Speaker-2.jpgFostex FE127E Vented Bookshelf Speaker5287 viewsPhotographs of the finished bookshelf speakers on a speaker stand. The enclosure is based on the Fostex FE127E Bass Reflex Bookshelf Speaker design by Rabbitz.

The enclosure is made from 15 mm MDF and is well braced. The woodworking and finishing of the speaker cabinets was done by a friend.Jun 05, 2009

Fostex-FE127E-DIY-Bass-Reflex-Speaker-1.jpgFostex FE127E DIY Bass Reflex Speaker6269 viewsClose up view of the finished bookshelf speakers. The speakers are based on the plans of Rabbitz Fostex FE127E DIY Bass Reflex Bookshelf Speakers.

The woodworking and painting of the cabinets were completed by a friend.Jun 05, 2009

Single-Ended-833-Tube-Amplifier-Monoblock.jpgSingle-Ended 833 Monoblock Tube Amplifier3510 viewsI have built a monoblock 833 SET tube amplifier with zero feedback and a fixed bias. The total power output 125W! Here you can find more photographs: http://img200.imageshack.us/gal.php?g=img1663t.jpgJun 04, 2009